自主水下航行器辅助的水下地理机会路由协议

doi:10.3778/j.issn.1673-9418.1910057

摘要/Abstract

摘要：

针对水下传感器网络（UWSN）存在能耗高、传输率低和带宽窄等问题，提出自主水下航行器（AUV）辅助的水下地理机会路由协议（GOHRP）。初始阶段，GOHRP基于普通节点的深度设计间距不等的分层网络，并依据普通节点权重大小选择每层的代理节点；路由阶段，普通节点通过机会路由策略将采集到的数据和反映水下事件重要性与时效性的数据信息值（VOI）转发给代理节点，接着AUV采用动态路由策略优先访问发送VOI值最大的代理节点，并将代理节点上的数据传输到水面浮标。仿真结果表明，GOHRP在保证高效稳定的数据传输率的同时，降低了网络时延，提高了能量利用率。

关键词: 水下传感器网络（UWSN）, 地理机会路由, 自主水下航行器（AUV）, 不等层结构

Abstract:

Aiming at the problems of underwater sensor networks (UWSN) such as high energy consumption, low transmission rate and narrow bandwidth, this paper proposes a geographic and opportunistic hybrid routing protocol (GOHRP) for UWSN based on autonomous underwater vehicle (AUV). In the initial stage, GOHRP designs layered networks with unequal spacing based on the depth of ordinary nodes, and selects the agent nodes of each layer according to the weight of ordinary nodes. In the routing stage, the ordinary nodes forward the collected data and value of information (VOI) reflecting the importance and timeliness of the underwater events to the agent node through the opportunistic routing strategy. Then, AUV adopts a dynamic routing strategy to visit preferentially the agent node with the largest VOI, and transmits the data on the agent node to the surface buoy. The simulation results show that GOHRP not only ensures efficient and stable data transmission rate, but also reduces network delay and improves energy utilization.

Key words: underwater sensor networks (UWSN), geographic and opportunistic hybrid routing, autonomous under-water vehicle (AUV), unequal structure

丁钰莹，郝琨，李成. 自主水下航行器辅助的水下地理机会路由协议[J]. 计算机科学与探索, 2020, 14(9): 1521-1531.

DING Yuying, HAO Kun, LI Cheng. Geographic and Opportunistic Hybrid Routing Protocol for Underwater Sensor Networks Based on Autonomous Underwater Vehicle[J]. Journal of Frontiers of Computer Science and Technology, 2020, 14(9): 1521-1531.

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